<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .container{
            display: flex;
            flex-wrap: wrap;
            /* flex-wrap: nowrap; */
            /* flex-wrap: wrap-reverse; */
            background-color: pink;
            justify-content: space-between;
        }
        .item{
            width: 10vw;
            height: 20vh;
            background-color: red;
            margin: 10px 20px;
        }
    </style>
</head>
<body>
    <dav class="container">
        <div class="item"></div>
        <div class="item"></div>
        <div class="item"></div>
        <div class="item"></div>
        <div class="item"></div>
        <div class="item"></div>
        <div class="item"></div>
        <div class="item"></div>
        <div class="item"></div>
        <div class="item"></div>
        <div class="item"></div>
        <div class="item"></div>
        <div class="item"></div>
        <div class="item"></div>
        <div class="item"></div>
        <div class="item"></div>
        <div class="item"></div>
        <div class="item"></div>
        <div class="item"></div>
        <div class="item"></div>
    </dav>
</body>
</html>